changing oil in front forks - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

 
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post #1 of 5 Old 01-25-2014, 11:24 PM Thread Starter
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changing oil in front forks

I need some advice im changing the oil in the front forks on my klr 650 what type of oil goes in it ,I hear 5 w and 20 w , meaning do I put motor oil in it trans mission fluid ,exactly whats the brand of oil and I also need the amount in ml per shock if any one has done this. I plan on doing this on the bike not taking the front shocks off just bleeding them from the Phillips screw on the bottom has any one done this type of job let me know thanks..................this is the first time the bike has been done I say since 1993 so I like to get it freshend up ................
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post #2 of 5 Old 01-26-2014, 12:43 AM
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Quote:
Originally Posted by morrissey_shawn View Post
I need some advice im changing the oil in the front forks on my klr 650 what type of oil goes in it ,I hear 5 w and 20 w , meaning do I put motor oil in it trans mission fluid ,exactly whats the brand of oil
I put fork oil in my forks. Clymer 1987-2003 says:

Fork oil grade: Kayaba G-10, or equivalent 10-weight fork oil

I think I put Bel Ray brand 10-weight fork oil in, choosing a brand at random.

Quote:
and I also need the amount in ml per shock if any one has done this.
Clymer:

Fork oil capacity (each leg), oil change: 355 cc (12 fl oz US)

Fork tube oil level (from top edge of inner tube): 188-192 mm (7.40-7.56 in.)

You can either measure the oil by volume in a measuring cup (355 cc), or by level with a fork oil level tool (188-192 mm). I have the tool; you can get them from MotionPro for $20. At least with the tool you know you got the level; if you use the measuring cup, you're relying on the fact that you managed to get most of the old oil out.

I used the scissor jack from my car to compress the forks once the drains were open to get the rest of the fluid out.

Question: has anyone used compressed air to flush the old fluid out of the forks on a gen1? It should work, right? (I'm thinking low-PSI, like a hand pump).

And my caps were on there really good; I had to WD-40 one of them and let it soak before it came off. Who knows the last time it had been done by the PO. I think they're aluminum, so be careful.

Quote:
I plan on doing this on the bike not taking the front shocks off just bleeding them from the Phillips screw on the bottom
You can do it on the bike, no problem.

I wholeheartedly recommend buying the Clymer manual. It has the whole procedure, volumes, fluids, and everything. Best $20 you could spend on the bike.

Or keep asking here; people will give you answers. It's just that having a Clymer handy is often faster.
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post #3 of 5 Old 01-26-2014, 02:03 AM
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There's a lot of good information right there. Whatever you do don't put motor oil in there.

Also don't forget about the forum search feature. You'll get all your questions answered.

My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #4 of 5 Old 01-30-2014, 06:06 PM
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Hi, changed my front fork oil recently, 10 year old KLR, just opened drain screw on bottom of fork leg and drained via gravity, even though oil was pretty viscous. Shouldn't need a hand pump. Cheers.
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post #5 of 5 Old 01-30-2014, 10:38 PM
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I used a ratchet strap through the front rim to the handlebars to compress the forks. I made a "level tool" out of a piece of cardboard that I cut into a T with the right length. If you leave the forks on the bike, you won't get all the oil/sludge out of them. After filling the oil, cycle the forks a couple times and recheck the level. I used 10wt CAT hydraulic oil and no probs so far. You will be surprised how much stuff comes out with the used oil. Lots of tiny metal particles dissolved in the oil.

A KLR is not a motorcycle, it is a blank canvas with which to paint the rest of your life.
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